Roofing-tile



J. M. MARTIN.

ROOFING TILE.

APPLICATION HLED SEPT. 22. I919 ,339,033, Patented May 4, 1920.

2 SHEETS-SHEET I.

1. MI MARTIN.

ROOFING TILE.

APPLICATION FILED SEPT. 22, 1919 1,339,033. Patented May 4,1920. v )8 2SHEETSSHEET 2.

.TOI-IN M. MARTIN, 0F DALLAS, TEXAS.

ROOFING-TILE.

To all whom it may concern:

Be it known that I, JOHN M. MARTIN", a citizen of the United States,residing at Dallas, in the county of Dallas and State of Texas, haveinvented certain new and useful Improvements in RoofingTiles,-of whichthe following is a specification. improvements in roofing tiles.

This invention relates to new and useful The invention has particularlyto do with plastic tiles and a sealed and lockedjoint therefor.

In carrying out the invention I provide each tile with a locking grooveor seat along one edge and an overhanging bead or flange carrying adepending rib adapted to fit therein by a mortar, such as cement. Thegroove and'rib are both wider along their lower faces, thus giving theeffect of a dove tail joint. The tiles are also provided with atransverse water'tight joint where they overlap, thus preventing waterbacking up between the tiles.

The invention will be more readily understood from a reading of thefollowing specification and by reference to the accompanying drawings,in which an example of the invention is shown, and wherein:

Figure 1 is an isometric view of a plurality of tiles forming part of aroof.

Fig. 2 is a longitudinal sectional view on the line 22 of Fig.1,

Fig. 3 is an isometric view showing a modified form,

Fig. 4 is an isometric view of still another form of tile, and

Fig. 5 is a longitudinal sectional view of the same on the line 55 ofFig. 4.

In the drawings the numeral 10 designates a plastic roofing tile havinga looking groove 11 along one edge, the groove being wider along itslower face. Along its other edge the tile has an overhanging flange 12with a depending rib 13 adapted to enter the groove 11.

In constructing a roof of the said tile the rib is seated in the groovein cement or mortar, the latter locking same. The groove and rib beingwider along their lower faces give the effect of a dovetail joint. Inorder that the tiles may be laid in break-joint relation a recess 14 inthe under surface of the tile at the center of the lower end of thelatter raises the rounded flange of the tile in the next lower course;thereby providing a close joint.

Patented May 4, 1920.

Application filed September 22, 1919. Serial No. 325,379.

filled with cement or mortar and the tile of the next higher courseis'laid'thereon thus forming a water-tight joint where the two tiles lapwhich would prevent water from backing up between the said tiles.

In Fig. 3 a modified form of the tile is shown, wherein the tile 10 hasa sinuous design and the flange 12 is so constructed'as to form a partof the sinuous curve of the design, and is received ina recess 16 in theadjacent tile. The same locking means is employed however, as in Fig. 1,comprising a groove 11 and a rib 13 depending from the flange, thegroove and rib being wider along their lower faces and being lockedtogether with cement or mortar, and giving the effect of a dove-tailjoint.

In'Fig. 4 another modification of the tile is shown wherein the tile 10is of a flat design and the flange 12 is flush with the surface of thetile, being received in a recess 16 in the adjoining tile. The lockingmeans comprising a groove 11 and a rib 13 depending from the flange,both groove and rib being wider along their lower faces and the ribbeing seated in the groove in cement or mortar, is also employed in thisdesign. Transverse' slots 15 adjacent the top of the tile are employed,and form a watertight joint by being filled with cement and the tile ofthe next higher course being lapped over the said slots, as shown indetail by Fig. 5.

It will be noted that a roofing tile constructed in accordance with thisinvention will make an extremely substantial and water-tightconstruction and may be quickly and easily laid.

It'is pointed out that the lock joint is a very important feature ofthis invention and it is essential to its success that thedove-tailjoint effect be had.

It is further pointed out that the construction of the groove and ribeach having a cor responding side inclined and the other sideperpendicular so as to tend to draw the tiles together, is veryimportant as it makes for a closer assemblage of the tiles.

What I claim is:

1. A roofing structure comprising, a plurality of tiles arranged incourses, each tile being provided near one edge with a groove whichincreases in width downwardly and at its opposite edge with an upwardlybulging flange projecting laterally beyond the same, said flange havinga depending rib spaced from the edges of the flange, said rib increasingin width downwardly, the rib of one tile being adapted for insertionwithin the groove of the adjacent tile, plastic material within thegroove to anchor the rib therein, each tile being provided at its upperend with a transverse recess having its top open,- such top beingcovered by the lower end of the adjacent tile in the upper course,plastic material within the transverse recess to bind the tilestogether, each tile being further provided centrally thereof upon itslower surface with a groove to receive said flange whereby the tiles inthe different courses are arranged to break joint.

2. A roofing structure comprising, a plurality of tiles arranged incourses, each tile being provided at one edge and upon its upper surfacewith a longitudinal groove increasing in width downwardly and upon itsopposite edge with a longitudinal flange projecting laterally beyond thetile, said flange being provided upon its lower side with a longitudinalrib spaced from the edges thereof and increasing in width downwardly,the rib of one tile being adapted for insertion within the groove of theother tile, plastic material within the groove to anchor the ribtherein, each tile being provided near its upper end with a recessextending transversely thereof and having its top open and covered bythe lower end of the tile in the upper course, said recess having itsbottom provided with teeth, and plastic material within the recess tobind the ends of the tiles together.

3. A roofing structure comprising, a plurality of tiles arranged incourses, each tile being provided at one edge and upon its upper surfacewith a longitudinal groove increasing in width downwardly and upon itsopposite edge with a longitudinal flange,

I said flange being provided upon its lower side with a longitudinal ribincreasing in width downwardly for insertion within the groove of theadjacent tile, plastic material within the groove to anchor the ribtherein, each tile having its lower end bent downwardly for forming alateral extension, each tile being provided near its upper end with atransverse recess, having its bottom provided with teeth which facedownwardly, and plastic material within the transverse recess to engagewith said teeth and the lateral extension of the tile in the upperlayer.

In testimony whereof I aflix my signature.

JOHN M. MARTIN.

